Hot-water valve.



PATENTED APR. 2, 1907.

APPLIOATION FILED JAN. 2, 1906.

UNITED STAES PA Specification of Letters Patent.

Application filed January 2, 1906. Serial No. 294,047.

ENT FICE.

Patented April 2, 1907.

To all w/wm, it may concern.-

Be it known that I, JAMES L. COOK, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in I'Iot-lVater Valves; andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had'to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

This invention relates to new and useful improvements in hot-watervalves or steamvalves.

The object of the invention is to provide a valve of the above typewhich dispenses with the necessity of using packing and which is quickactingin a word, a valve of the above type which is the essence ofsimplicity and practicability.

Preceding a detail description of the invention reference is made to theaccompanying drawings, of which Figure 1 is a vertical longitudinalsection of my improved hot-water valve. Fig. 2 is a cross-section on theline a: 90 of Fig. 1. Fig. 3 is a detached view of the disk and metalbasket.

In a detail description of the invention, similar reference charactersindicate corresponding parts.

K designates a barrel or cylindrical valvecasing, in the lower end ofwhich the inletpipe R is connected, and in the upper end of which anapertured cap E is connected, and to a side of which the outlet-pipe Sis connected. From opposite sides of and on the interior of thisvalve-casing K there are placed ribs L, which form guides for a propermovement of the disk holder or basket. The

valve-stem turns in the aperture in the cap E D is recessed and filledwith a composition of softer metal, making the wearing-surfacessmoother, and thus insuring an absolutely tight oint.

G is'an expansion-spring mounted upon the valve-stem between the collarF and the nut H, the latter being a lock-nut screwed into the lower endof the cap E and through which the valve-stem C passes. The lowerportion of the valve-stem is provided with double threads J, by means ofwhich a quick opening or closing of the valve is enabled. The lower endof said stem screws into a metal basket M, which is provided withinletorifices N and P, which communicate with each other and receive hotwater from the inlet B.

When the valve is used for hot-water purposes, the opening P from theinlet R, communicating with orifice N, allows a free circulationpf hotwater when the valve is closed. In a hot-water valve it will beunderstood that the valve is never closed entirely, owing to thenecessity of maintaining a circulation through the hot-water system. Theopening P, connecting the inlet R and orifice N, provides for thiscirculation.

O is a composition disk held within the lower side of the basket M by anut O, which is screwed onto an extension from the basket M.

Q is the lower valve-seat, with which the composition disk 0 cooperates.

The basket M has laterally-extended arms A, which are bifurcated attheir outer ends to receive the guide-ribs L on the interior of thevalve-casing.

From the above description it will be observed that the valve isentirely free from packing and the seating between the stem and the capE is of a most practical form. The annular seat formed by the matchingsurfaces D and D is close to the center of the valve-stem, so that aperfect contact of each part will always be maintained.

Having described my invention, I claim- In a hot-water valve, avalve-casing, the apertured cap E with interior annular valveseat D,said valve-seat lying adjacent to the orifice in said cap, a valve-stemhaving a collar F thereon, said collar lying within the apertured capand having'a valve-seat D thereon matching with the seat D in said cap,said valve-seat D being recessed and filled with a composition of softermetal to insure a smooth wearing-surface and tight joint, saidvalve-seat D lying adjacent to the stem, a

mounted within the basket M, and the valveseat Q, on the lower end ofthe valve-casing,

nut H supported on the lower end of the apertured cap, a springGsurrounding the Valvestem and inelosed between the collar F and lsubstantially as described.

the nut H within the apertured cap, double i In testimony whereof Iafiix my signature 5 screw-threads J on the portion of said valve- 1 inpresence of two witnesses.

stern lying within the Valve-casing, a basket engaging saidscrew-threads, said basket I JAMES COOK having guide-arms projected fromopposite WVitnesses: sides thereof and receiving guide-ribs on the R. J.MOCARTY,

1o opposite sides of the valve-casing, a disk 0 O. M. THEOBALD.

